The Schneider Electric Acti 9 iEZ EZD160S 3P 160A is a three-pole, 160A electronic circuit breaker from the Acti 9 iEZ range, equipped with an "S-type" electronic trip unit. The "S" designation typically indicates a Standard or Selective protection unit, offering fully adjustable overload and short-circuit protection with a focus on achieving high selectivity with downstream devices.